韌體
BQ27Z758
- Integrated battery gas gauge and protector
- Flash-programmable custom BQBMP RISC CPU
- SHA-256 authentication
- 400kHz I2C bus communications interface
- Low-voltage (2.0V) operation
- Zero volt charging with no inhibit (ZVCHG) for systems with secondary protectors
- Two independent precision 16-bit ADCs
- Coulomb counting ADC with current sense resistor down to 1mΩ
- Voltage ADC for cell voltage and external and internal temperature sensors
- Battery fuel gauging based on patented Impedance Track™ technology
- Models battery discharge curve for accurate time-to-empty predictions
- Automatically adjusts for aging, temperature, and rate-induced effects on the battery
- Battery Kelvin sense differential analog output pins with built-in protection
- High-side or low-side current sensing
- Programmable hardware-based protection
- High-side FET gate drivers
- Overvoltage and undervoltage (OVP and UVP)
- Overcurrent in discharge and overcurrent in charge (OCD and OCC)
- Short circuit in discharge (SCD)
- Firmware-based overtemperature (OT)
- Reduced typical power modes
- SLEEP mode: 20µA
- SHIP mode: 10µA
- SHELF mode: 5µA
- SHUTDOWN mode: 0.2µA
- Ultra-compact, 15-ball NanoFree™ DSBGA
The Texas Instruments BQ27Z758 Impedance Track™ gas gauge solution is a highly integrated, accurate 1-series cell gas gauge and protection solution.
The BQ27Z758 device provides a fully integrated, pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, differential battery sensing analog output, and authentication for 1-series cell Li-ion and Li-polymer battery packs.
The BQ27Z758 gas gauge communicates through an I2C compatible interface and combines an ultra-low power TI BQBMP processor, high accuracy analog measurement capabilities, integrated flash memory, N-CH high-side FET drive, and a SHA-2 Authentication transform responder into a complete, high-performance battery management solution.
技術文件
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檢視所有 6 | 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | BQ27Z758 Impedance Track Technology Battery Gas Gauge and Protection Solution for 1-Series Cell Li-Ion Battery Packs datasheet (Rev. C) | PDF | HTML | 2025年 9月 11日 |
| Application note | How to Create and Program Authentication Keys into TI Battery Fuel Gauges | PDF | HTML | 2025年 3月 5日 | |
| Application note | BQ27Z746 Hardware Protection Threshold Calibration | PDF | HTML | 2024年 12月 2日 | |
| User guide | BQ27Z746-R1 and BQ27Z758 Technical Reference Manual (Rev. B) | PDF | HTML | 2024年 7月 9日 | |
| EVM User's guide | BQ27Z746 Impedance Track Battery Gas Gauge and Protection Solution for 1-Series (Rev. A) | PDF | HTML | 2023年 10月 19日 | |
| Application note | Design Flexibility for Reverse Charge Protection Using BQ27Z746 | PDF | HTML | 2023年 8月 2日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
BQ27Z746EVM-047 — BQ27Z746 評估模組，具有保護解決方案的 Impedance Track™ 技術電池氣量計
BQ27Z746EVM-047 評估模組 (EVM) 是適用 BQ27Z746 電池管理器的完整評估系統。EVM 包含 BQ27Z746，具備整合式保護電路模組和與 Windows® PC 軟體連結。提供 BQ27Z746 積體電路 (IC) 和所有板載元件以監控重要電池芯參數、預測電池芯容量和健康狀態，並防止 1 串聯電池芯鋰離子或鋰聚合物電池組中的電池芯過度充電、過度放電、短路和過電流。BQ27Z746EVM 使用 I2C 通訊協定、EV2400 與 bqStudio 軟體 GUI 來讀取 BQ27Z746 資料暫存器、為不同電池組配置進行 BQ27Z746 (...)
軟體程式設計工具
BQ-BMS-PROGRAMMER-SW — Command line programmers for BQ products
BQ-BATTERY-PROGRAMMER-SW software development kit (SDK) is a collection of robust software command line tools that assist with the process of programming, testing, or assembling packs that use TI Battery management products. The executables in this software work with the MKST-3P-ALT-EV2300 MKS (...)
支援產品和硬體
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YAH) | 15 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。